Abstract: Embodiments of negative pressure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, a system includes a pump assembly, canister, and a wound dressing configured to be positioned over a wound. The pump assembly, canister, and the wound dressing can be fluidically connected to facilitate delivery of negative pressure to a wound. The system can additionally include a valve configured to control the introduction of positive pressure to the wound.

Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, negative pressure source, circuit board, and one or more controllers. The circuit board can be supported by the housing and include a conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The conductive pathway can be electrically coupled to an electrical ground for the circuit board. The one or more controllers can be mounted on the circuit board and activate and deactivate the negative pressure source.

Abstract: Electronic patient monitoring and treatment devices can include various loads (such as, pumps or sensors) that may need to be actively managed at startup to prevent a brownout condition and reset from occurring. To prevent the brownout and reset, an initial inrush current to the load can be limited by a soft-start circuit. In some cases, alternatively activating and deactivating a switch can packetize the energy transfer from a power source to the load and reduce the inrush current. Reducing the current can also reduce the required recovery time of the power source.

Abstract: In some embodiments, a wound monitoring and/or therapy apparatus includes a wound dressing configured to be positioned in contact with a wound, the wound dressing comprising one or more sensors configured to obtain measurement data of at least one of the wound or periwound. The apparatus can also include a controller configured to maintain a device clock indicative of a non-real time clock, receive measurement data obtained by the one or more sensors, and transmit measurement data to a remote computing device according to a security protocol, the security protocol comprising including the device clock associated with the measurement data) in the transmission.

Abstract: A wound treatment apparatus can include a wound dressing configured to be positioned proximate to a wound. Multiple optical fibers positioned at least partly in the wound dressing can include a first optical fiber and a second optical fiber. The wound treatment apparatus can include an emitter and a detector. The emitter can emit first electromagnetic radiation into the first optical fiber so that the first optical fiber passes the first electromagnetic radiation. The detector can generate a signal responsive to second electromagnetic radiation that exits the second optical fiber and contacts the detector.

Abstract: Embodiments of secure wound therapy systems and methods for operating the systems are disclosed. In some embodiments, the apparatus includes a pressure source, a user interface, and a locking mechanism. The locking mechanism can be in one of at least two states, the at least two states including a first state in which the locking mechanism physically prevents user adjustment of one or more operational parameters with the user interface and a second state in which the locking mechanism does not physically prevent user adjustment of the one or more operational parameters with the user interface. The locking mechanism can include an authentication key and a receiver configured to receive an authentication input, which may be compared to the authentication key. Providing a sufficiently matching authentication input can transition the locking mechanism from the first state to the second state, permitting adjustments to the one or more operational parameters.

Abstract: Embodiments of negative pressure wound therapy systems, apparatuses, and methods for operating the systems and apparatuses are disclosed. In some embodiments, the apparatus includes a negative pressure source, a connector port, at least one switch, and a controller. The negative pressure source is connected through the connector port to either (i) a wound dressing having a canister configured to store fluid aspirated from the wound or (ii) a wound dressing without a canister between the connector port and the wound dressing. The controller determines, based on a signal received from the at least one switch, whether the canister is positioned in the fluid flow path and adjusts one or more operational parameters of negative pressure wound therapy based on the determination. The switch is activated by the connection of either the canister or canisterless wound dressing to the apparatus.

Abstract: Disclosed systems and methods relate to status indication using a canister of negative pressure wound therapy apparatus. A method of providing a visual indication to a user of a negative pressure wound therapy apparatus can include, by a controller of the negative pressure wound therapy apparatus, determining a plurality of conditions associated with provision of negative pressure wound therapy by a negative pressure source of the negative pressure wound therapy apparatus and causing provision of a plurality of visual indications associated with the plurality of conditions to a user and, by at least one light pipe, transmitting light associated with at least one visual indication of the plurality of visual indications through at least a portion of an interior volume of a canister of the negative pressure wound therapy apparatus.

Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In some embodiments, an apparatus includes a housing enclosing a source of negative pressure and a controller configured to operate the source of negative pressure to provide negative pressure wound therapy to a wound. The housing can also include a communications controller configured to wirelessly transmit and receive data using a communications antenna positioned on an antenna board. The antenna board can be mounted to a communications board that include the communications controller. The antenna board can be electrically connected to the communications board via a single connector on the communications board. The antenna's ground plane can be positioned on the communications board.

Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In one embodiment, an apparatus includes a housing, negative pressure source, circuit board, and one or more controllers. The circuit board can be supported by the housing and include a conductive pathway extending around at least part of a perimeter of a first side of the circuit board. The conductive pathway can be electrically coupled to an electrical ground for the circuit board. The one or more controllers can be mounted on the circuit board and activate and deactivate the negative pressure source.

Abstract: The present disclosure provides in part improved apparatuses, systems, and methods for providing therapy to a wound. A system can include a first power source configured to power an electronic component and a second power source configured to power the electronic component in place of the first power source. Responsive to a first condition, the second power source can power the electronic component in place of the first power source. In some cases, the system can include a pressure source that is configured to provide negative pressure to a wound dressing positioned over a wound. The wound dressing can support the first power source or the second power source.

Abstract: In some embodiments, a wound monitoring and/or therapy apparatus includes a wound dressing configured to be positioned in contact with a wound, the wound dressing comprising one or more sensors configured to obtain measurement data of at least one of the wound or periwound. The apparatus can also include a controller configured to maintain a device clock indicative of a non-real time clock, receive measurement data obtained by the one or more sensors, and transmit measurement data to a remote computing device according to a security protocol, the security protocol comprising including the device clock associated with the measurement data in the transmission.

Abstract: A sensor sheet of a wound monitoring and/or therapy apparatus can include one or more electrical connections. The electrical connections can include multiple conductive inks having different impedances. A track of first conductive ink having a first impedance can be coupled to an electrical connector of an electronic component. A track of second conductive ink having a second impedance can be coupled to the track of first conductive ink.

Abstract: Methods of manufacturing a wound monitoring and/or therapy apparatus and/or wound dressing include positioning electronic components and connections in regions of a substrate that are not configured to be perforated. The methods can also include following a set of rules for positioning the components as well as positioning and shaping the connections based on the constraints stemming from, among other things, the positioning of the perforations on the substrate and with the goal of maintaining acceptable levels of signal integrity. The methods further include manufacturing a multi-layered substrate. Wound monitoring and/or therapy apparatus manufactured using such methods are also disclosed.

Abstract: Disclosed embodiments relate to apparatuses and methods for a skin perfusion pressure determination device.

Abstract: Embodiments of negative pressure wound therapy devices, systems and methods are disclosed. In some embodiments, a negative pressure wound therapy device includes a negative pressure source configured to provide negative pressure to a wound via a fluid flow path, a power source configured to power the negative pressure source, and a charging circuit configured to monitor a temperature of the power source and charge the power source. The charging circuit can be further configured to in response to a determination that the temperature of the power source is below a temperature threshold, provide a first charging power to the power source. The charging circuit can be further configured to in response to a determination that the temperature of the power source has reached or is above the temperature threshold, lower the first charging power to a second charging power.

Abstract: Embodiments of negative pressure wound therapy systems and methods are disclosed. In some embodiments, a wound therapy system includes a negative pressure source configured to provide negative pressure via a fluid flow path to a wound dressing, a first circuit board assembly including a first controller configured to control a wound therapy with the wound dressing by activation and deactivation of the negative pressure source, and a second circuit board assembly in communication with the first circuit board assembly, the second circuit board assembly separate from the first circuit board assembly. The second circuit board assembly can include a second controller configured to wirelessly communicate therapy data via a communication network, receive an executable command from an electronic device, and execute the executable command without providing the executable command to the first controller.

Abstract: The approaches described herein can provide mitigation against the risk of one or more malfunctions of electronics of a negative pressure wound therapy device. The one or more malfunctions can include flow reverse current, flow of excessive current, liquid ingress, or inadvertent activation. The approaches described herein can provide protection against a single fault (or higher protection against more than one fault). Advantageously, mitigation against the risk of burning or otherwise causing discomfort to the patient or the risk of fire can be provided.

Abstract: An apparatus for applying negative pressure to a wound is disclosed. The apparatus can include a housing, a pressure source, a canister, and a controller. The pressure source can be supported by the housing and provide negative pressure via a fluid flow path to a wound dressing positioned over a wound. The canister can collect exudate from the wound. The controller can monitor a parameter indicative of providing negative pressure to the wound dressing with the pressure source, determine from the parameter that the wound is treatable with a canisterless wound therapy apparatus, and output for presentation to a user a notification indicating that the wound is treatable with the canisterless wound therapy apparatus.

Abstract: Embodiments of apparatuses and methods for providing negative pressure wound therapy to multiple wounds are disclosed. In some embodiments, presence of blockage in one or more fluid flow paths connecting a negative pressure source to one or more dressings can be performed. Determination of a blockage can be performed based on comparing one or more pressure measurements to at least one threshold. The at least one threshold can be determined based on detected capacities of the one or more dressings.